"The Silence Of The Prime"

I finally came up with a solution to that very annoying EV sound from the RAV4 Prime. You all know what I am talking about. That Alien space ship sound that gets 3x louder when your in a parking garage. I dare say it is louder than some engines I have heard.
Welcome to "The Silence of the Prime".
I did the foam rubber taped over the emitter mod. But that sound was only reduced slightly. I was told I could still be heard a block away.
So a put some thought into it to see if something could be done from a technical standpoint, Without complaint from the car's computer. I did some testing to determine what kind of signal was going to the emitter, and what did the computer expect to see as a load to not cause an error to be thrown.
The result, I came up with a relatively simple circuit that allows me to switch the sound off and on from inside the Prime, Without causing error codes to pop up. The circuit effectively replaces the sound emitter with a 4 ohm resister on command.
In my case I am using a channel on the Auxbeam 8 channel controller to switch the circuit on and off. But even a simple toggle switch or push on/push off button will work. It does not have to be something as elaborate as the Auxbeam system.
One benefit of using the Auxbeam. If I have disabled the sound by pressing the button, the next time I start the car it will go back to default, which is the sound enabled. This way it is not forgotten and left off. I would have to press the button again to disable the sound. Handy if someone else has to drive the car, if it is taken into Toyota service, or if ever there comes a time where an inspect requires the sound to be operational.
I am calling it my "stealth mode." The vehicle is really very quiet when the sound is disabled. And before anyone gets triggered by the idea of the sound being disabled causing safety issues. I drove a 2005 Ford Escape Hybrid for 17 years before getting this truck. It never had any kind of pedestrian alerting sounds built in and was just as quiet when in EV mode. In all those years I never had any issues with pedestrians due to the lack of sound with the vehicle. They can see the vehicle, and even when they didn't I always saw them. And drove accordingly and safely. Basically good driving practices rules all.
Disclaimer: This mod is not for the faint of heart when it comes to electronics. Do not attempt this mod if you do not know what your are doing. I take no responsibility if you fry your car's electronics. This video was simply sharing what I did on my vehicle and to answer some questions from commenters.
This video is for entertainment purposes only.